html,body,body>div{
    height: 100%;
    background: #f90;
}
body>div{
    min-width: 1100px;
}
body {
    font-family:'SimHei';
}
/* 清除浮动*/
.clearfix:before,
.clearfix:after {
    content: " ";
    display: table;
  }
.clearfix:after {
    clear: both;
  }

.left{
    float:left;
}
.right{
    float:right;
}